Everflex AC95 Acoustic Sealant & Adhesive is an intumescent acrylic sealant and adhesive specifically formulated for fire rated sealing and bonding applications on plasterboard and other kraft lined insulation boards. Provides up to 5 hours fire resistance. Acoustic rated to BS EN ISO 140/3. Tested for air permeability to EN13141-1 Ventilation for buildings. Performance testing for components/products for residential ventilation.